baber/WOPTO huggingface dataset:
Patent CA-1308560-C (CA)
Title: Post-mix method and system for supply of powderized materials
Inventor: OHIWA YOSHITAKA
IPC: G05D11/13
Filed: 1987-04-22
Granted: 1992-10-13
Abstract: ABSTRACT OF THE DISCLOSURE          A powderized material supply system comprises a  plurality  of  reservoir  tanks,  each  containing  a different  type  of  powder,  and  is  associated with  a metering  means  for  metering  the  material  into  an individual supply line.   Each individual supply line is associated with a carrier fluid source which supplies, carrier fluid at a controlled pressure for transferring the  metered  material  with  the  carrier  fluid.    The individual material supply lines,  each associated with the corresponding  reservoir  tank,  are  connected to a post-mixing chamber into which the metered materials are introduced.   The post-mixing chamber is connected to a mixture  supply  line.    Each  metering means  can  be controlled  for  metering  a  controlled  amount  of  the material    in   it's   associated   reservoir    tank, independently of others.  The powderized material supply system is applicable in various industrial or laboratory level processes which require supply of a plurality of powder  state fluid material at a variable rate.   The system is specifically applicable for flux injection in hot metal pre-treatment process in smelting process of metal industries. For example, the system is applicable for sequential operation or simultaneous operation for desiliconization,        dephosphorization        and/or desulfurization during hot metal pre-treatment.
Patent CA-1284109-C (CA)
Title: Aqueous solution containing a quinolone carboxylic acid
Inventor: OGATA KAZUMI
IPC: A61P31/04
Filed: 1987-06-12
Granted: 1991-05-14
Abstract: ABSTRACT OF THE DISCLOSURE   A stable isotonic aqueous solution of the compound 1-ethyl-6,8-difluoro-1,4-dihydro-7-(3-methyl-1-pipera-zinyl)-4-oxoquinoline-3-carboxylic acid,  or a pharma-ceutically-acceptable salt thereof, having a pH of 3 to 6.5 and isotonized with a polyalcohol or boric acid is disclosed.
Patent CA-1276330-C (CA)
Title: Voltage stabilizing esters and urethanes
Inventor: DEXTER MARTIN
IPC: H01B3/46
Filed: 1987-06-30
Granted: 1990-11-13
Abstract: VOLTAGE STABILIZING ESTERS AND URETHANES                 ABSTRACT OF THE DISCLOSURE         Esters and urethanes of certain polydialkylsiloxane-polyoxyalkylene block and graft copolymers which impart high voltage stabilization to dielectric olefin polymers, the stabilized olefin polymer insulating materials resulting there-from and electric wire or cable insulated therewith.
Patent CA-1295848-C (CA)
Inventor: FUJITA TOSHIO
IPC: C05G3/00
Filed: 1987-06-30
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DICLOSURE  A gramular fertilizer with a degradative coating characterized in that after it has been applied to soil and its fertilizer component has dissolved out, the resulting coating part degrades rapidly is provided, which degradative coating comprises an ethylene-carbon monoxide copolymer as its indispensable component and a rubbery resin, an ethylene-vinyl acetate copolymer resin or powder as an optional component.
Patent CA-1289548-C (CA)
Title: Synthetic lubricating fluid
Inventor: YOSHIMURA NARIHIKO
IPC: C10M107/02
Filed: 1987-08-12
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE     A synthetic lubricating fluid comprising:   (i)  an ester or its derivative  of cyclohexanol and cyclohexanecarboxylic acid represented by the formula   wherein R1, R2, and R3 are independently selected from hydrogen and alkyl groups containing from 1 to 8 carbon atoms; and (ii) from 1 to 70% by weight of a branched poly-?-olefin.
Patent CA-1330828-C (CA)
Title: Battery charger
Inventor: NOR JIRI K
IPC: H02J7/00
Filed: 1987-10-09
Granted: 1994-07-19
Abstract: ABSTRACT     A  charger  for  charging  rechargeable batteries  including  circuitry  for supplying electrical  charging power to said rechargeable battery so as to rapidly  charge  said  rechargeable  battery, interrupting  circuitry  for repeatedly interrupting said electrical charging power to said rechargeable battery for a preselected timed interval at a preselected frequency so as to permit the detection of the internal resistance free voltage of said battery during said interruption of said power,  electrical comparing circuitry for comparing  the  internal  resistance  free  voltage  of  said  battery with  a preselected reference voltage,  and electrical control circuitry for reducing said power to said battery when said internal resistance free voltage equals or exceeds said preselected reference voltage so as to reduce the rate of charging of said rechargeable battery and maintain said internal resistance free voltage of said battery at said preselected reference voltage.
Patent CA-1283039-C (CA)
Title: Method and device for manipulating ferrofluids for use in cementing wells
Inventor: LARSON DAVID B
IPC: E21B33/14
Filed: 1987-10-19
Granted: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE    A novel method and device for manipulating ferrofluids for use in cementing wells are disclosed.  The cementitious fluids may comprise:  (a) a hydraulic cement, (b) finely divided magnetic particles, (c) a binding agent of a surfac-tant, and (d) a liquid medium.  The binding agent or surfac-tant is present in the compositions in an amount sufficient to render the compositions stable in a magnetic field.  When used in cementing wells, the cementitious ferrofluids are implaced in the annulus separating a casing from the forma-tion in a wellbore by conventional techniques and the slurry is subsequently subjected to an activating alternating magnetic field that causes movement of the slurry.  The non-cementitious ferrofluids comprise:  (a) finely divided magnetic particles, (b) stabilizing agent, and (c) a liquid medium.  The movement of the slurry results in a "scrubbing" action against the surface of the casing and formation surfaces, and a mixing of the slurry which helps displace any residual drilling mud.  The net result is better bonding of the cement to the casing and formation.
Patent CA-1301479-C (CA)
Inventor: MATTHIESSEN HANS
IPC: G01N33/00
Filed: 1987-11-16
Granted: 1992-05-26
Abstract: ABSTRACT    An apparatus to detect a gaseous component in air has a sample chamber that contains a sensor through which an air sample flows through a closable inlet and outlet.  The sensor is hermetically sealed off from its surroundings, not only during flushing of the sample chamber, but primarily during the measurement process it-self, this being done so as to preclude any effects caused by the diffusion of ambient air into the measurement chamber.  To this end, it is foreseen that in order to determine the sample quantity that is diffusing into the measurement chamber at the beginning of a specifiable time period both the inlet and the outlet are closed and at the same time the measurement chamber opening is opened, and in that after the expiration of the time period the measurement chamber opening is closed.
Patent CA-1303720-C (CA)
Title: Borehole televiewer mudcake monitor
Inventor: CLERKE EDWARD A
IPC: E21B47/08
Filed: 1987-12-11
Granted: 1992-06-16
Abstract: A B S T R A C T     BOREHOLE TELEVIEWER MUDCAKE MONITOR           In connection with a borehole televiewer system (10), the delta time (51) between low threshold (54) crossing (T1) and signal peak arrival (T2) provides a measure of mudcake (43) thickness.
Patent CA-1309516-C (CA)
Title: Apparatus and method for closed-loop control of reactor power in minimun time
Inventor: BERNARD JOHN A JR
IPC: G21C7/36
Filed: 1987-12-30
Granted: 1992-10-27
Abstract: Abstract of the Disclosure Closed-loop control law for altering the power level of nuclear reactors in a safe manner and without overshoot and in minimum time.  Apparatus is provided for moving a fast-acting control element such as a control rod or a control drum for altering the nuclear reactor power level.  A computer computes at short time intervals either the function:                               or the function:       These functions each specify the rate of change of reactivity that is necessary to achieve a specified rate of change of reactor power.  The direction and speed of motion of the control element is altered so as to provide the rate of reactivity change calculated using either or both of these functions thereby resulting in the attainment of a new power level without overshoot and in minimum time.  These functions are computed at intervals of approximately 0.01-1.0 seconds depending on the specific application.
Patent CA-1280139-C (CA)
Title: Sub-miniature fuse
Inventor: MORRILL VAUGHAN JR
IPC: H01H85/04
Filed: 1988-01-20
Granted: 1991-02-12
Abstract: Abstract of the Disclosure A sub-miniature fuse for electrical protection includes an assembly of an outer tube and an inner tube made of insulating material,  The inner tube has electrodes and a fusible metal link sputtered onto its outer surface.  The assembly of inner and outer tubes is terminated electrically at its ends with axial leads, or with surface mounting pads, or with radial leads.
Patent CA-1295870-C (CA)
Title: Automatically coupling fluid connector for a hitch
Inventor: POORE BERNARD B
IPC: B60D1/62
Filed: 1988-02-03
Granted: 1992-02-18
Abstract: AUTOMATICALLY COUPLING FLUID CONNECTOR FOR A HITCH             Abstract of the Disclosure An arrangement and assembly is set forth for automatically making power connections during the hitching and unhitching of an implement to a vehicle.  The assembly includes mating halves of power connections located on hitch elements of the implement and vehicle respectively.  Power connection halves are arranged so that the relative movement necessary between hitch elements of the implement and vehicle to accomplish their connection are also sufficient to cause coupling of the power connection. Basic alignment of the hitch elements provides a preliminary alignment of the power connection halves.  Further alignment of the power connection halves in two directions is accomplished by a set of pins associated with one connector halve which engages a set of holes in a mounting member holding the other halve of the power connection.  Contact between the pins and the surface of the holes provide a final alignment of the connector halves in two directions.  The connector halves are resiliently mounted for axial movement in a direction parallel to the axis of the pins.  Relative axial movement allows the power connections to be completed and the resilient mounting allows for a degree of axial misalignment.  This type of mounting system is particularly suited for electrical or hydraulic connections and accomplishes automatic coupling or uncoupling using only the motion necessary for coupling the load transfer elements of the hitch mechanisms.  By utilizing only the motion necessary for coupling of the load transfer elements automatic coupling of power connections is accomplished without the use of any additional actuators.  The arrangement also permits automatic uncoupling of the power connections during the unhitching of the load transfer elements.
Patent CA-1309871-C (CA)
Title: Direct fired power cycle
Inventor: KALINA ALEXANDER I
IPC: A63B71/14
Filed: 1988-02-15
Granted: 1992-11-10
Abstract: DIRECT FIRED POWER CYCLE                  ABSTRACT OF THE DISCLOSURE      A method and apparatus for implementing a thermody-namic cycle, which includes the use of a composite stream, having a higher content of a high-boiling component than a working stream, to provide heat needed to evaporate the working stream.  After being superheated, the working stream is expanded in a turbine.  Thereafter, the expanded stream is separated into a spent stream and a withdrawal stream.  The withdrawal stream is combined with a lean stream to produce a composite stream.  The composite stream evaporates the working stream and preheats the working stream and the lean stream.  The composite stream is then expanded to a reduced pressure.  A first portion of this composite stream is fed into a gravity separator. The liquid stream flowing from the gravity separator forms a portion of the lean stream that is combined with the withdrawal stream.  The vapor stream flowing from the separator combines with a second portion of the composite stream in a scrubber.  The vapor stream from the scrubber combines with a third portion of the expanded composite stream to produce a pre-condensed working stream that is condensed forming a liquid working stream.  The liquid streams from the scrubber and gravity separator combine to form the lean stream.  The liquid working stream is preheated and evaporated transforming it into the gaseous working stream.  The cycle is complete when the gaseous working stream is again superheated.
Patent CA-1315283-C (CA)
Inventor: PEGLION JEAN-LOUIS
IPC: C07D307/93
Filed: 1988-03-22
Granted: 1993-03-30
Abstract: 27 NOUVELLES AMINES TRICYCLIQUES DERIVEES DU TETRAHYDRO-5,6,7,8 NAPHTO ¢2,3b! DIHYDRO-2,3 FURANNE, ET DU TETRAHYDRO-6,7,8,9 5H-BENZOCYCLOHEPTA ¢2,3b! DIHYDRO-2,3 FURANNE, LEURS PROCEDES DE PREPARATION ET LES COMPOSITIONS PHARMACEUTIQUES QUI LES CONTIENNENT. ADIR ET CIE 22 RUE GARNIER 92201 NEUILLY SUR SEINE L'invention concerne des nouveaux composés de formule générale I, <IMG> (I) dans laquelle : - R1 et R2 identiques ou différents représentent chacun un atome d'hydrogène, un radical benzyle, un radical cyclohexylméthyle ou un radical alkyle linéaire ou ramifié renfermant de 1 à 10 atomes de carbone éventuellement substitué, - R3 représente un atome d'hydrogène ou un radical alkyle linéaire ou ramifié renfermant de 1 à 4 atomes de carbone, - A représente une simple liaison ou un radical méthylène, ou un radical de formule, <IMG> dans laquelle R4 représente un radical alkyle linéaire ou ramifié renfermant de 1 à 4 atomes de carbone, sous forme racémique ou d'isomères optiques, 28 et leurs sels d'addition à un acide minéral ou organique, pharmaceutiquement acceptable, et leur procédé de préparation caractérisé en ce que : l'on condense le dihydro-2,3 benzofuranne de formule II, <IMG> (II) avec un dérivé de l'anhydride aspartique ou glutamique de formule générale III <IMG> (III) dans laquelle Z représente un atome d'hydrogène ou de fluor, pour former les composés de formule générale IV, <IMG> (IV) que l'on réduit pour former les composés de formule générale V, <IMG> (V) 29 que l'on soumet à l'action du pentoxyde de phosphore pour former les composés de formule générale VI, <IMG> (VI) que l'on soumet à une hydrogénation catalytique pour obtenir un amide de formule générale VII, <IMG> (VII) que l'on fait réagir avec une base forte pour obtenir un composé de formule générale I dans laquelle R1 et R2 identiques représentent chacun un atome d'hydrogène, lequel ensuite, que l'on peut alcoyler pour former les amines secondaires ou tertiaires correspondantes, que l'on peut ensuite, si on le désire, salifier avec un acide minéral ou organique pharmaceutiquement acceptable, ou séparer en leurs isomères optiques et ensuite salifier.
Patent CA-1328272-C (CA)
Title: Process and intermediate for preparing 4-cyclohexylproline
Inventor: THOTTATHIL JOHN K
IPC: C07D207/16
Filed: 1988-03-28
Granted: 1994-04-05
Abstract: Abstract PROCESS AND INTERMEDIATES FOR     A process is provided for preparing 4-hydroxy-4-phenyl-proline derivatives of the structure   wherein R1 is a nitrogen protecting group such as benzoyl, benzyloxycarbonyl, t-butoxycarbonyl, benzyl, benzgydryl, trityl, acetyl, trifluoro-methylacetyl, sulfonamides, and the like and wherein X is OR2 and R2 is hydrogen or an acid protecting group such as lower alkyl, aryl-lower alkyl or a metal ion, such as Na or K, or X is NR3R4 wherein R3 and R4 may be the same or different and are hydrogen, lower alkyl, aryl or arylalkyl, or R3 and R4 together with the nitrogen to which they are attached form a 5-, 6- or 7-membered ring.  The process includes the steps of forming triphenylcerium [(C6H5)3C3], for example, by reacting cerium trichloride (CeCl3) with phenyllithium, and reacting the triphenylcerium with the keto acid   in the presence of an inert organic solvent such as tetrahydrofuran.  The 4-hydroxy-4-phenyl-proline derivatives used in the preparation of 4-substi-tuted proline derivatives which are employed for preparing certain angiotensin-converting enzyme inhibitors.
Patent CA-1310684-C (CA)
Title: Modular cabinet
Inventor: HASUIKE MAKIO
IPC: B42F17/08
Filed: 1988-04-08
Granted: 1992-11-24
Abstract: ABSTRACT Modular  cabinet,  (10) to  hold and transport floppy-disks, mini-disks,  cards and other office materials in an organized manner,  which comprises a cabinet case (39) and at least  one extractable  drawer  (12)  and  can  be  combined  with  other cabinets and includes at least one drawer (12) with a front panel  (20) and rear closure panel  (21),  the panels  (20-21) being connected by a well (38) having edges (41),  the front panel (20) comprising support feet (25), a lower central outer handle (15),  an upper information display window (13) and a lock (14).
Patent CA-1330450-C (CA)
Inventor: WEH ERWIN
IPC: F16L37/12
Filed: 1988-05-13
Granted: 1994-06-28
Abstract: Abstract:            A plug coupling for providing a pressure-sealed connection to a device having a cylindrical connector comprises a tube-like support element having a front portion provided with a sealing ring and a rear portion formed as an inlet part. Elongated clamping jaws are linked to the support element and extend in a generally axial direction. Said clamping jaws are arranged concentrically around a longitudinal axis of the support element and have free ends radially displaceable. A sleeve surrounds the support element and is shiftable in longitudinal direction and has a front end portion provided with a rim for engaging peripheral surfaces of said clamping jaws for locking them in an engaged position. The sleeve is urged into the engaged position either by a spring or by pressure. An arresting device blocks the sleeve to prevent this engagement of the plug coupling when fluid pressure is applied thereto.
Patent CA-1331571-C (CA)
Inventor: LEVESQUE GUY
IPC: C12N9/96
Filed: 1988-06-29
Granted: 1994-08-23
Abstract: Procédé de modification chimique de protides et produits ainsi modifiés Procédé de modification d'un protide par fixation d'un groupe organique sur sa molécule, faisant réagir le protide avec un acide, sel ou ester dithioïque dont le reste d'acide comporte le groupe organique à fixer, tandis que le reste de la molécule a une structure de groupe partant, de sorte que le composé dithioïque réagit avec des -NH2 ou -NH-de la molécule du protide.
Patent CA-1299675-C (CA)
Title: Method and device for underwater electrical welding
Inventor: REY HENRI
IPC: B23K9/00
Filed: 1988-06-30
Granted: 1992-04-28
Abstract: METHOD AND DEVICE FOR UNDERWATER ELECTRICAL WELDING       Abstract of the Disclosure Method  of  underwater arc welding comprising the steps  of  placing  a  welding electrode nearby a parent material  to  be welded, immerged in water; generating a high  frequency  voltage  between  the electrode and the parent  material for starting a striking arc and supply-ing a  high  frequency current to said electrode, after said striking arc has been initiated; generating a weld-ing  voltage for producing a weld at the parent material and;  simultaneously  sustaining the high frequency cur-rent, superimposed to the welding current, for stabiliz-ing  said  welding  arc  during the time duration of the underwater arc welding.
Patent CA-1335050-C (CA)
Inventor: HINE PHILIP
IPC: G03C1/485
Filed: 1988-07-20
Granted: 1995-04-04
Abstract: A direct-positive silver halide emulsion comprising fine grain reduction and gold surface fogged silver halide grains containing an electron-trapping effective amount of at least one Group VIII metal dopant, at least 75% by weight of all silver halide grains in said emulsion being silver halide grains wherein at least 80 mole percent of the halide within said grains is chloride.
Patent CA-1287882-C (CA)
Title: Digital data detector
Inventor: TAKEUCHI HITOSHI
IPC: H04L7/02
Filed: 1988-07-20
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE     A digital modulation signal is sampled by an A/D converter in a predetermined cycle.  A phase interval P between a zero level crossing and the current sampling point using sampling data Si+1 at the current sampling point and sampling data Si at a sampling point which is located one point before the current sampling point . A phase Pi+1of the current sampling point is found using the phase interval P, a phase Pi of the sampling point which is located one point before the current sampling point, a phase Pi-1 of a sampling point which is located two points before the current sampling point and a phase Pi-2 of a sampling point which is located three points before the current sampling point.  A clock signal is detected using the phases Pi+1 and Pi.  Digital data is detected using the phase interval P, the phase Pi+1 and the sampling data Si at the sampling point which is located one point before the current sampling point.
Patent CA-1295057-C (CA)
Title: Beam redirecting
Inventor: KOEHLER ANDREAS M
IPC: G21K1/093
Filed: 1988-07-22
Granted: 1992-01-28
Abstract: Abstract of the Disclosure A beam is redirected from an initial direction lying along an initial axis to a final direction lying in a plane which intersects the initial axis (the final direction being other than radially away from the axis) by first redirecting the beam from the initial direction to an intermediate direction lying in the plane, and then redirecting the beam within the plane from the intermediate direction to the final direction.
Patent CA-1336361-C (CA)
Title: Process for preparing metal particles
Inventor: TAMEMASA HIROSHI
IPC: B22F1/17
Filed: 1988-08-12
Granted: 1995-07-25
Abstract: Fine particles of a metal such as copper and silver can be obtained by reducing the corresponding metal compound solution with one or more reducing agents selected from the group consisting of L-ascorbic acid, L-ascorbate, D-erythorbic acid and D-erythorbate. Silver-palladium composite particles can also be obtained similarly by employing a colloidal palladium liquid and a silver compound solution.
Patent CA-1318931-C (CA)
Title: Gripping and rotating tong device
Inventor: VARIS MATTI
IPC: E21B19/16
Filed: 1988-09-30
Granted: 1993-06-08
Abstract: Abstract A gripping and rotating tong device for handling drill rods, drill bits and other corresponding, at least partially rod-like pieces. The tong device comprises and housing (11) fastened to a movable transfer device, the housing having an axial hole and a radial aperture (18) for taking the piece to be handled from out-side the housing to inside it, and in the housing it has gripping means which grip the workpiece introduced into the hous-ing, and parts for rotating the gripping means. The gripping means include at least two locking ring gears (1, 2) which rest in bearings rotatably in relation to the housing, at least one of them having cogging on the outer periphery and each having a notch (17, 16) extending to the center, along which notch the workpiece can pass to the center of the ring gears and away from there. The rotating of the ring gears is effected by at least one gear (3), the workpiece (20) centered with the ring gears (1, 2) rotating to-gether with them. The centering and/or releasing of the workpiece is effected by a limited turning (k) of one ring gear in relation to the other ring gear, produced by the starting, ending or changing of direction of the rotation.